Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Andesine from
Mount Somma, Metropolitan City of Naples, Campania, Italy


Locality type:Mountain
Classification
Species:Albite var: Andesine
Formula:(Na,Ca)[Al(Si,Al)Si2O8]
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Andesine data
Locality Data:Click here to view Mount Somma, Metropolitan City of Naples, Campania, Italy
Data Identifiers
Mindat Occurrence Record ID:26748
Long-form Identifier:1:3:26748:3
GUID (UUID V4):0
References
[Lapis 1994:5 p.13-23,58]
 
and/or  
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